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Methods of intra prediction, video encoder, and video decoder thereof

A video encoder and video decoder technology, applied in the field of intra-frame prediction methods and related video encoders and video decoders, can solve problems such as difficult parallel implementation, large frame buffers, etc.

Inactive Publication Date: 2011-05-04
MEDIATEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current traditional deblocking operation is a frame-level process; that is, the traditional deblocking operation is only performed after "one frame" is fully encoded
Therefore, the traditional deblocking operation requires a large frame buffer and is difficult to parallelize (parallelize)

Method used

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  • Methods of intra prediction, video encoder, and video decoder thereof
  • Methods of intra prediction, video encoder, and video decoder thereof
  • Methods of intra prediction, video encoder, and video decoder thereof

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Embodiment Construction

[0022] Certain terms are used in the description and claims to refer to particular elements. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in name as a way to distinguish components, but use the difference in function of components as a criterion for distinguishing. "Includes" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". In addition, the term "coupled" herein includes any direct and indirect means of electrical connection. Therefore, if it is described that the first device is coupled to the second device, it means that the first device may be directly electrically connected to the second device, or indirectly electrically connected to the second device through other devices or connection means.

[0023] First, to make the description of the present inventio...

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PUM

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Abstract

A method of intra prediction includes the steps of: receiving a video input having a plurality of blocks; encoding and reconstructing the plurality of blocks one by one; after encoding and reconstructing a designated block of the plurality of blocks to generate a designated reconstructed block, performing a deblocking operation upon the designated reconstructed block so as to generate a reference block with at least one sample being deblocked; and performing an intra prediction operation upon a current block by using samples of the reference block generated by the deblocking operation.

Description

[0001] cross reference [0002] This application claims priority from US Provisional Application No. 61 / 222,503 filed 2009 / 07 / 02. Their subject matter is hereby incorporated by reference. technical field [0003] The present invention relates to intra prediction methods and related video encoders and video decoders, and in particular to performing intra prediction operations on blocks of a video input or bitstream by using partially deblocked samples Method and related video encoder and video decoder. Background technique [0004] For video encoders, such as H.264 / AVC video encoders, deblocking operations are used on reconstructed frames to reduce block distortion so that blocks in the luminance and chrominance planes (e.g. 4x4 or 8x8 transform blocks, macroblocks) are smoothed to improve prediction performance. Therefore, compression performance is improved. Video decoders, such as H.264 / AVC video decoders, also use deblocking operations to minimize blocking artifacts ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N7/32
CPCH04N19/176H04N19/147H04N19/61H04N19/11H04N19/117H04N19/82H04N19/86
Inventor 傅智铭黄毓文雷少民
Owner MEDIATEK INC